Hidden object detector



FIG. 1 is a front view of a hidden object detector showing our new design;

FIG. 2 is a rear view thereof

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view thereof; and,

FIG. 7 is a left side view thereof.

In the above drawings, the broken lines and the areas within the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a hidden object detector, as shown and described. 